1 noisy and lacking in restraint or discipline;
"a boisterous crowd"; "a social gathering that became rambunctious
and out of hand"; "a robustious group of teenagers"; "beneath the
rumbustious surface of his paintings is sympathy for the
vulnerability of ordinary human beings"; "an unruly class" [syn:
rambunctious,
robustious, rumbustious, unruly]